var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
//引入mongoose
require('./db.js')
//引入跨域
const {allowCrossDomain}=require('./cors.js')
// 引入token验证配置
const jwtAuth = require('./utils/auth')


//接口路由引入
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

// 系统管理路由
var systemRouter = require('./routes/systemManage');


var app = express();
app.use(allowCrossDomain); // 使用跨域

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// 让 token 验证规则生效
app.use(jwtAuth);

//一级接口
app.use('/', indexRouter);
app.use('/users', usersRouter);

//系统管理一级接口
app.use('/system', systemRouter);


// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});
app.listen(3000,()=>{console.log('后台3000端口启动成功');})
// module.exports = app;
